Question

find the value of the expression
$2 \times t \times r^n \div s$
for $n = 3$, $r = 2$, $s = 4$, and $t = 18$.

Explanation:

Step1: Substitute given values

$2 \times 18 \times 2^3 \div 4$

Step2: Calculate exponent first

$2^3 = 8$, so expression becomes $2 \times 18 \times 8 \div 4$

Step3: Compute left-to-right multiplication

$2 \times 18 = 36$; $36 \times 8 = 288$

Step4: Perform final division

$288 \div 4 = 72$

Answer:

72